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General Chat Thread, BBC News - Black Hole's 'Big Meal' Could Spark Fireworks in General; Originally Posted by localzuk An example, Gliese 581 c, which is thought of as our nearest planet that could harbour ...
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    Quote Originally Posted by localzuk View Post
    An example, Gliese 581 c, which is thought of as our nearest planet that could harbour life (that we've discovered so far), is 20 light years away. So, even if we could travel at the speed of light, we'd still take 20 years to get there!
    If you travelled at the speed of light, it would take you no time at all to get there. To everyone you left behind, 20 years would pass, but not for you.

    I was thinking on the way to work the other morning, that if all the humans on earth now were evenly distributed through the galaxies in universe, then out of 20 neighbouring galaxies, you would only find one human. You don't just get your own planet, you can have whole galaxies all to yourself! And given that we see no evidence of other life in the universe, that's a stark measure of how special we are.

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    bladedanny's Avatar
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    Quote Originally Posted by pcstru View Post
    ...that's a stark measure of how special we are.
    And also how insignificant we are.

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    DaveP's Avatar
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    Quote Originally Posted by pcstru View Post
    ...And given that we see no evidence of other life in the universe, that's a stark measure of how special we are.
    Undetected doesn't mean it doesn't exist. I would like to believe that there is life elsewhere [other than Earth] and when you think that The Universe is so vast that it cannot be comprehended I believe that there must be life elsewhere but it is, as yet, unproven.

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    localzuk's Avatar
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    Quote Originally Posted by DaveP View Post
    Undetected doesn't mean it doesn't exist. I would like to believe that there is life elsewhere [other than Earth] and when you think that The Universe is so vast that it cannot be comprehended I believe that there must be life elsewhere but it is, as yet, unproven.
    We don't know if there is or isn't life, but a belief that it does or doesn't exist would be premature.

    But then, that's getting into religion.

    I believe the current thoughts on life are quite varied, with some feeling that statistically it is highly improbable that we are alone, and others thinking that the fact we have not seen evidence of life is proof that it likely doesn't exist (Fermi Paradox).

    I'm of the mind that it might exist or might not. The search is fun either way.

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    CHR1S's Avatar
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    Quote Originally Posted by fairm010 View Post
    But to think that time could go back, what would happen at the point time started?
    Your assuming time has a start, middle and end.....


    Quote Originally Posted by pcstru View Post
    If you travelled at the speed of light, it would take you no time at all to get there. To everyone you left behind, 20 years would pass, but not for you.
    No, it would actually take 20 years, your thinking of the faster than light theory.

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    EvLPhenom's Avatar
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    Just reading this thread has made my head hurt lol

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    Quote Originally Posted by localzuk View Post
    I'm of the mind that it might exist or might not. The search is fun either way.
    You have to make some BIG assumptions but, IF life is generated by sheer fluke (and no biblical intervention) what are the odds on the initial conditions forming a molecule that in turn multiplied and diversified AND THEN mutated and evolved AND THEN branched off into different types of life AND THEN continued to evolve?

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    localzuk's Avatar
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    Quote Originally Posted by CHR1S View Post
    You have to make some BIG assumptions but, IF life is generated by sheer fluke (and no biblical intervention) what are the odds on the initial conditions forming a molecule that in turn multiplied and diversified AND THEN mutated and evolved AND THEN branched off into different types of life AND THEN continued to evolve?
    It's quite interesting, as it has so many variables, but then the universe is pretty huge and old, so the numbers go hand in hand.

    The Drake Equation attempts to bring some maths to the problem, but it is full of assumptions and missing various variables too.

    So, its still all guesswork really!

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    I wonder, is there is an alternate dimension out there where people are posting on a non-educational forum about how space doesn't exist and how small it is?

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    Quote Originally Posted by CHR1S View Post
    You have to make some BIG assumptions but, IF life is generated by sheer fluke (and no biblical intervention) what are the odds on the initial conditions forming a molecule that in turn multiplied and diversified AND THEN mutated and evolved AND THEN branched off into different types of life AND THEN continued to evolve?
    Not to mention that we can only look for life as we know it - there are more types of particle we have barely perceived and even then only with highly powerful, incredibly expensive devices such as CERN's LHC - who's to say "life" doesn't exist on other planets but in such a way as we wouldn't know it if we were looking right at it?

    Too much for a Friday, I'm off to the pub!

  11. Thanks to LosOjos from:

    DaveP (10th January 2014)

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    I like this mind boggling space fact: I takes a photon 40000+ years to get to the surface of the Sun but only 9.5 minutes for it to get from the surface of the Sun to Earth.

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    Quote Originally Posted by LosOjos View Post
    Not to mention that we can only look for life as we know it - there are more types of particle we have barely perceived
    By life are we talking sentient life?

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    Quote Originally Posted by fairm010 View Post
    I wonder, is there is an alternate dimension out there where people are posting on a non-educational forum about how space doesn't exist and how small it is?
    Yes there is.
    But there's also an alternate dimension where there isn't.
    So ha.

    All this arguing about 'time'.. Time is a man-made construct, relative to the physical movement of our little rock. Rather than considering 'past' and 'future', what if it's just 'The present that isn't happening anymore' and 'the present that hasn't happened'. If there's only one plane of time, here and now, time travel isn't possible at all. Instead of thinking about time as a strict line, WAS-NOW-WILL BE, what if there's only the NOW? It's entirely possible, nobody knows how the universe 'works'. Rather than us moving through time (and thus, time/timeline being stationary) what if there is no timeline?

    Or what if it's turtles all the way down? Who knows?

  15. Thanks to Garacesh from:

    Greenbeast (13th January 2014)

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    Quote Originally Posted by LosOjos View Post
    ...Too much for a Friday, I'm off to the pub!
    Now there's an idea! I haven't visited my local in quite a while.

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    How insignificant we are....

    According to Astrophysicist Bruce Gregory, if the number of stars in our galaxy (the milky way) were frozen peas there would be enough to fill the Royal Albert Hall TWICE!!

    If the number of known visible galaxies were frozen peas, they would fill the Royal Albert Hall!

    Insane thinking

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